Map Showing the Proposed Site for Light House or Beacon on New South Shoal, April 11, 1849, extract from the coast survey archives showing a part of the hydrographical work (incomplete) off Nantucket Island; A.D. Bache, Supt. U.S. Coast Survey, in burlwood frame with ecru silk mat, dark brown wood liner

25.75 in. x 16.25 in. Framed 33 in. x 23 in.